9-3 SE Sedan (9400) L4-2.0L Turbo (B204) HO (1999)
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+30
The ACC unit is supplied with current from +30 via fuse 27 to pin 22.
+15
The ACC unit is supplied with current from +15 via fuse 9 to pin 4. +15 power supply is used to activate the control module.
The fan control and the cabin temperature sensor suction fan receive the necessary power directly from the ACC unit.
Diagnosis
If power supply is missing, the display will not light up when the ignition is turned on.
